Satan Bookmarker Headcanons
He has half as many book markers as he does books.
Each bookmark is unique in its own way, all very ornate looking.
Mammon was the one who got him his first bookmark, but it was Asmo that inspired his collection.
The bookmark Mammon got Satan was entirely made of gold, with green emeralds laid within it. It’s the only bookmark Satan doesn’t use.
Everyone teases Mammon that such a heavy bookmarker is useless.
But the truth is, it's Satan's favorite. And the most important one.
As such, he keeps it safely hidden and protected, so it can’t get damaged even if he destroys his room.
Asmo on the other hand, got Satan a bookmark braiding kit one year, and while he will never admit it out loud, most of his bookmarks are from this kit.
While Satan is a bit slow with bookmark braiding, there’s no arguing against the beauty and quality of them. It’s one of his many side hobbies.
At one point, he even got little charms and wove them into the bookmarkers, before sneaking them as presents to everyone.
(He cursed Lucifer's bookmarker, but Lucifer of course saw through that. He kept it anyways, and decided to leave the curse on it. After all, his little brother worked very hard on making it.)
He doesn't know what happened to the bookmarkers he made everyone, and he'll never ask.
He also hopes no one ever finds out he was the one that made them.
(Spoiler Alert: Everyone knew, but in seeing how nervous Satan was about it, decided not to bring it up. They all have their bookmarker safely stashed away somewhere.)